Friday, February 14, 2014

Audi abd new Sport Quattro GT

The Audi Sport Quattro concept car, after several re-thinks, finally seems likely to get the nod for production. Come to that, the company has recently re-jigged several pieces of its sports-car jigsaw.
Audi chief engineer Ulrich Hackenberg has confirmed several details surrounding the Sport Quattro GT, while hinting at the company's other sports cars in the pipeline.
Confirming earlier reports, Hackenberg told Top Gear the Sport Quattro GT will drop the concept's 700-horsepower hybrid drivetrain in favor of a traditional powerplant to bring costs down. Unconfirmed reports point to the 2.5-liter five-cylinder engine from the RS Q3 as a likely choice, tuned for 360 horsepower.
"We used a powerful powertrain to position it," the engineer said. "But the potential is to have more volume. It needs a high investment so it makes sense to use other engines."
Despite the presumable drop in power, the car will still be positioned above the TT but below the R8 as a "comfortable GT" four-seater. It is expected to be built upon the company's next-generation modular longitudinal matrix (MLB) platform, with extensive use of lightweight materials.
Audi is also said to be seriously considering a crossover TT similar to the Allroad Shooting Brake concept that was previewed in Detroit earlier this year. Hackenberg suggests such a vehicle would have a "big group of fans" as smaller crossovers continue to gain in popularity.
The chief engineer also raised hope that the R8 e-tron will make it to market, noting that the company has worked to resolve two limiting factors that stalled the project: range and price. Part of the solution is claimed to focus on improvements to the modular batteries.
The plug-in hybrid drive makes the Audi Sport quattro concept makes it a special performance car. System output is 700 hp, with torque at 590 lb-ft. Power flows through a modified 8-speed Tiptronic to the quattro powertrain, which features a sport differential on the rear axle. According to the applicable standard, the show car consumes on average 94.09 mpg, a CO2 equivalent of 59 grams per kilometer (94.95 g/mile).
The combustion engine is a 4.0-liter, twin-turbo V-8 that produces 560 hp and 700 516 lb-ft of torque. The cylinder on demand (COD) system, which deactivates four cylinders under part load, and a start-stop system make the sonorous eight-cylinder unit very efficient.
Located between the 4.0 TFSI and the transmission is a disc-shaped electric motor producing 110 kW and 295 lb-ft. It draws its traction energy from a liquid-cooled lithium-ion battery in the rear with a capacity of 14.1 kWh. The show car is charged via an Audi wall box, which uses intelligent charge management to ensure the optimal feed of energy to the lithium-ion battery. The Audi Sport quattro concept can cover up to 32 miles on electric power alone. An intelligent management system controls the interplay between the two drives as needed, and the driver can choose between various operating modes.
The customer can choose between various characteristics for the Audi Sport quattro concept depending on the operating and driving strategy. A choice of three modes is available. EV mode is for purely electric driving; Hybrid mode for maximum efficiency and Sport mode for maximum performance.
In Sport mode, the operating strategy sets the drive system for maximum power and performance. The electric boost function supports the combustion engine in all driving situations. The energy management system ensures that the battery always has sufficient charge. When the V-8 and the electric motor work together, the Audi Sport quattro concept accelerates from 0 to 100 km/h (62.14 mph) in 3.7 seconds – much like the powerful Audi rally cars once did. Its top speed is 305 km/h (189.52 mph).